There are some lice repellant products, such as lice prevention shampoo, that contain essential oils that are known to deter the lice. These are a great way to prevent lice. You can purchase a lice repellant on the licenders website. Besides repellants, you should be proactive in lice education. Teach children during neutral (non- lice outbreak) times that they should not share their coats or hats or throw their coats and knapsacks into a pile of coats. This can spread lice. Instead, they should hang their coat on their own hook in the classroom.